Vulcanizes fob bubbeb boots and shoes



F. B. BOSS.

VULCANIZER FOR RUBBER BGOTS AND SHOES. APPLlcmou [lulu um al. 191e.

1,3 1 1,012. Y Patented July 22, 1919.

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FRANK B. ROSS, OF CAPE GIRARDEAU, MISSOURI.

VULGANIZEB. FOR RUBBER BGOTS AND SHOES.

Specification of Letters Patent.

Patented July 22, 1919.

Application filed December 31, 1918. Serial No. 269,165.

To all whom it may concern:

lle it known that I, FRANK B. Ross, a citizen of the United States, residing at Cape Girardeau, in the county of Cape Girardeau and State of Missouri, have in vented certain new and useful Improvements in Vulcanizers for Rubber Boots and Shoes, of which the following is a specification.

This invention relates broadly to improvements in vulcanizers and more particularly relates to a vulcanizer for boots and shoes.

It is the primary object of this invention to provide a device of the above mentioned character designed for vulcanizing rubber or plastic composition soles on boots and slices, the component parts heilig of novel construction and adjustable relative to each other to permit of the application and renioval of shoes to and from the supporting tree.

It is an additional object of this invention to provide a device of the above mentioned character wherein improved means is employed for guiding the mold and for applying heat and pressure to the mold.

The invention also embraces the provision of a device of the above mentioned character wherein the main support is of novel construction aiid is designed to effectively support the shoe supporting tree and the guiding means for the mold.

Among the other aims and objects of this invention may be recited the provision of a device of the above mentioned character wherein the number of arts are comparatively few, the construction simple, the cost of reduction low and the eiliciency high.

ther objects, as well as the nature, characteristic features, and scope of this invention will be more readily understood from the following description taken in connection with the accompanying drawings and pointed out in the claims, forming a part of this specification.

The invention is clearly illustrated in the accompanying drawings, in which Figurc 1 is a side elevation showing the improved vulcanizing device,

Fig. 2 is a front elevational view thereof,

Fig. 3 is a transverse section taken on line 3-3 of Fig. 1, and

Fig. 4 is a top plan detail of a modified forni of mold.

Similar characters of reference are eniloyed in all of the above described views, to indicate corresponding parts.

Referring now, more particularly, to the accompanying drawings there is provided a stand consisting of a base 1 from which rises a standard 2 on the upper edge of which is supported an inverted shoe sup` porting tree 3. A shelf 4 is connected to the standard 2 and supported in a laterally extended position with respect to the standard by means of braces 5 while mounted on the upper surface of the shelf are spaced brackets 6 to which are pivoted as by pins 7 the adjacent terminal ends of the side portions or legs 8 of the substantially inverted U-shaped supporting and guiding frame generally designated 9. In this connection it is to be noted that the shelf 4 is positioned beneath the front part of the shoe supporting tree 3 while the side or leg portions 8 are designed to straddle the legs with respect to the front portion of the tiee 3, the arrangement being indicated in the drawings.

Arranged between the side or leg portions 8 of the movable frame 9 is a mold 10 consisting generally of a rectangularhollow ybody the under surface of which is recessed as at 11 to conform to the configuration of half of the sole of a shoe, it being necessary to arrange the mold above the outer portion of the tree 3 so that the recessed portion 11 will be accommodated about the sole of a shoe (not shown) adapted to be supported on the tree. The mold is formed on its opposite sides and medially of its ends with notched lugs 12 designed to slide into engagement with the side or leg portions 8 so as to be guided thereby.

In order to apply heat to the mold an inlet pipe 13 is mounted in one end of the tree and is fitted with a manually operable valve 14 controlling the passage of heat through the pipe into the casing while the opposite end of the stem has a coupling 15 mounted thereon which in turn is designed to engage a nipple 16 projecting from a universal joint 17 in the main supply pipe 18. This main supply pipe is adapted to support rigidly in any suitable manner so that the casing Vmay be moved to various directions relative thereto When the frame 9 is not straddled thereabout. An exhaust pipe 19 leads from the opposite end of the casing and this same end of the casing is also fitted with a plug valve 20 for draining purposes.

In order to apply pressure to the casing to insure of an effective vulcanizing action the intermediate portion of the frame 9 is formed with a threaded openinpr in which is iitted a threaded and vertically adjustable stein 2l, the lower end oi' which is formed with a bearing 22 designed to be positioned `:against and exert a downward` pressure on the casing' 10 when the stem is adjusted through the instrumentality of the handle 23 carried by the upper end thereof.

In Fig. 4 there is lshown a slightly modified form of mold, the iunior surface ole which is recessed so as to be accommodated about the sole, heel and boxing portions oi a shoe as indicated at 24. The rest. ol tho construction is the same as that shown in the preferred form shown in Fig. 1 with the exception of course that the casing is of a greater length and it is also apparent that when this form is used the shoe tree may be supported farther toward the left at the position shown in the Fig. 1 so as to be dis-- posed-as nearly as possible beneath the intermediate portion of the frame 9, as is apparent.

In using the preferred form of the invention as disclosed in Figs. 1 to 3 inclusive, a shoe (not, shown) is adapted to be arranged about the supporting tree 3 so that the sole portion thereof is disposed upwardly whereupon the mold 10 which is universally connected as at 17 With the main supply is swungr so as to be positioned over the sole ortion in such a manner that the sole port en Will be accommodated in the recess. Of4 course rubber or other plastic composition to be 'vulcanized is adapted to be arranged therebetween. The traine 9 is now swung upwardly antl straddled about the 'casing 10 which lattei1 may be raised slightly to a slanting or tilting position so that the notched lues may be engaged about the leg or side portions 8 ot' the irame and Subsequently swung to positions as described and as shown in Fig. 1. Finally, the screw 21 is adjusted so that a pressure will be eX- erted a ainst the mold. During this adjustmenll` of the screw of course the valve l-l is turned on so that steam may be applied to the casing and this coacts With the pressure which is applied to the casing in insuring an effective vul'eanizing action.

It is believed in View of the foregoing desci tion that a further detailed description of t e operation of the invention is entirely unnecessary. Likewise, it is believed that the advantages of the invention will be readily apparent.

Still further embodiments of the inven- Gpies of fhli patent inaglil nhtined tornve cents each, by addressing' the tion than those, herein especially defined may be resorted to as conditions or preterenee may dictate, as may be in keeping with the hereto appended claims.

lilaving thus iully described the invention, what is claimed as new and desired to he secured by Letters latent, is:

l. A device of the character described including a stand, au inverted shoe supporting' tree carried by the upper end thereof, a shelf extending laterally irom the stand, a universally mounted mold above the tree, notched lugs projecting from the sides of the mold, brackets carried by the shelf, an inverted U-shaped frame havingr the terminals of `its side portions swingably connected to the brackets and designed to be straddled about the tree and the mold and engaged by the notched lugs to coact with the latter in guiding the slidingr movement oi' the mold relative to the tree, a manually operable pressure applying element adjustably mounted in the traine for actingr against the mold, and means for applying heat to the mold.

2. A device. of the character described including a stand, an inverted shoe supportinnr tree carried by the upper end thereof, a .shelf extendinglr laterally from the stand, a mold inoh'idincv a rectangular casingr the under surface of which is shaped to conform to the shape of a half of a sole of a shoe, an inlet pipe connected therewith, a valve in the pipe for controlling the passage of heat to the casing5 of the mold, means for detachably and universally connecting the pipe with a heat supply, a shelf extending laterally from the stand, a pair of brackets on the shelf` an. inverted U-shape'd frame having the tern'linals of its side portions pivoted to the brackets so that the frame may bc swung! into straddled relation with the tree and the mold, opposed notched lugs projcctinp1 from the mold and slidably engaged with the side ort-ions of the frame, an exteriorly threa( ed stem adjustably mounted in the intermediate portion of the frame, a bearingr carried by the lower end of the stein and engageable with the top of the Inol'd casing, and a hand Wheel connected to the top of the stem for facilitating adjustment thereof to consequently apply pressure to the mold casing.

In testimony whereof, I affix my signature hereto.

FRANK B. ROSS.

Gommissiuner of Patents,

Washington, D. C." 

